SbVec4f Class Reference

4D vector class. More...

#include <Inventor/SbLinear.h>

Public Member Functions
	SbVec4f ()
	Default constructor.
	SbVec4f (const float v[4])
	Constructor given vector components.
	SbVec4f (float x, float y, float z, float w)
	Constructor given vector components.
float	dot (const SbVec4f &v) const
	Returns dot (inner) product of vector and another vector.
void	getReal (SbVec3f &v) const
	Returns the real portion of the vector by dividing by the fourth value.
SbVec3f	getReal () const
	Returns the real portion of the vector by dividing by the fourth value.
const float *	getValue () const
	Returns vector components.
void	getValue (float &x, float &y, float &z, float &w) const
	Returns vector components.
float	length () const
	Returns geometric length of vector.
void	negate ()
	Negates each component of vector in place.
float	normalize ()
	Changes vector to be unit length.
SbVec4f &	setValue (const float v[4])
	Sets the vector components.
SbVec4f &	setValue (float x, float y, float z, float w)
	Sets the vector components.
float &	operator[] (int i)
	Accesses indexed component of vector.
const float &	operator[] (int i) const
SbVec4f &	operator*= (float d)
	Component-wise scalar multiplication and division operators.
SbVec4f &	operator/= (float d)
	Component-wise scalar multiplication and division operators.
SbVec4f &	operator+= (const SbVec4f &u)
	Component-wise vector addition and subtraction operators.
SbVec4f &	operator-= (const SbVec4f &u)
	Component-wise vector addition and subtraction operators.
SbVec4f	operator- () const
	Nondestructive unary negation - returns a new vector.
bool	equals (const SbVec4f v, float tolerance) const
	Equality comparison within given tolerance em the square of the length of the maximum distance between the two vectors.

Protected Attributes
float	vec [4]
	Storage for vector components.

Friends
INVENTOR_API SbVec4f	operator* (const SbVec4f &v, float d)
	Component-wise binary scalar multiplication and division operators.
INVENTOR_API SbVec4f	operator* (float d, const SbVec4f &v)
INVENTOR_API SbVec4f	operator/ (const SbVec4f &v, float d)
INVENTOR_API SbVec4f	operator+ (const SbVec4f &v1, const SbVec4f &v2)
	Component-wise binary vector addition and subtraction operators.
INVENTOR_API SbVec4f	operator- (const SbVec4f &v1, const SbVec4f &v2)
INVENTOR_API bool	operator== (const SbVec4f &v1, const SbVec4f &v2)
	Equality comparison operator.
INVENTOR_API bool	operator!= (const SbVec4f &v1, const SbVec4f &v2)

Detailed Description

4D vector class used to store homogeneous coordinates. This class is used in Inventor for arguments and return values. {}

See Also

SbVec2f, SbVec3f, SbVec2s, SbRotation

Definition at line 559 of file SbLinear.h.

Constructor & Destructor Documentation

SbVec4f() [1/3]

SbVec4f::SbVec4f ( )

inline

Definition at line 563 of file SbLinear.h.

SbVec4f() [2/3]

SbVec4f::SbVec4f ( const float  v[4] )

inline

Definition at line 566 of file SbLinear.h.

SbVec4f() [3/3]

SbVec4f::SbVec4f ( float  x, float  y, float  z, float  w  )

inline

Definition at line 569 of file SbLinear.h.

Member Function Documentation

dot()

float SbVec4f::dot

(

const SbVec4f &

v

)

const

equals()

bool SbVec4f::equals	(	const SbVec4f	v,
		float	tolerance
	)		const

getReal() [1/2]

SbVec3f SbVec4f::getReal ( ) const

inline

Definition at line 578 of file SbLinear.h.

References getReal().

Referenced by getReal().

getReal() [2/2]

void SbVec4f::getReal

(

SbVec3f &

v

)

const

getValue() [1/2]

const float * SbVec4f::getValue ( ) const

inline

Definition at line 581 of file SbLinear.h.

getValue() [2/2]

void SbVec4f::getValue	(	float &	x,
		float &	y,
		float &	z,
		float &	w
	)		const

length()

float SbVec4f::length

(

)

const

negate()

void SbVec4f::negate

(

)

normalize()

float SbVec4f::normalize

(

)

operator*=()

SbVec4f & SbVec4f::operator*=

(

float

d

)

operator+=()

SbVec4f & SbVec4f::operator+=

(

const SbVec4f &

u

)

operator-()

SbVec4f SbVec4f::operator-

(

)

const

operator-=()

SbVec4f & SbVec4f::operator-=

(

const SbVec4f &

u

)

operator/=()

SbVec4f & SbVec4f::operator/= ( float  d )

inline

Definition at line 609 of file SbLinear.h.

operator[]() [1/2]

float & SbVec4f::operator[] ( int  i )

inline

Definition at line 602 of file SbLinear.h.

operator[]() [2/2]

const float & SbVec4f::operator[] ( int  i ) const

inline

Definition at line 603 of file SbLinear.h.

setValue() [1/2]

SbVec4f & SbVec4f::setValue

(

const float

v[4]

)

setValue() [2/2]

SbVec4f & SbVec4f::setValue	(	float	x,
		float	y,
		float	z,
		float	w
	)

Friends And Related Symbol Documentation

operator!=

INVENTOR_API bool operator!= ( const SbVec4f &  v1, const SbVec4f &  v2  )

friend

Definition at line 653 of file SbLinear.h.

operator* [1/2]

INVENTOR_API SbVec4f operator* ( const SbVec4f &  v, float  d  )

friend

operator* [2/2]

INVENTOR_API SbVec4f operator* ( float  d, const SbVec4f &  v  )

friend

Definition at line 643 of file SbLinear.h.

operator+

INVENTOR_API SbVec4f operator+ ( const SbVec4f &  v1, const SbVec4f &  v2  )

friend

operator-

INVENTOR_API SbVec4f operator- ( const SbVec4f &  v1, const SbVec4f &  v2  )

friend

operator/

INVENTOR_API SbVec4f operator/ ( const SbVec4f &  v, float  d  )

friend

Definition at line 645 of file SbLinear.h.

operator==

INVENTOR_API bool operator== ( const SbVec4f &  v1, const SbVec4f &  v2  )

friend

Member Data Documentation

vec

float SbVec4f::vec[4]

protected

Definition at line 639 of file SbLinear.h.

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The documentation for this class was generated from the following file:

• C:/jh/mevislab/4.0.2_1/build/MeVis/ThirdParty/Sources/Inventor/include/Inventor/SbLinear.h